anyone familiar with tuning the computers on these

what are the best options for tuning the maps?

which donor cars will have flashable ecu's?

i know looked into evoscan with my 3000gt and it looks like a pretty good logger and is compatible with subaru's.
and ecuflash is a free flashing program u just need the right reflash cable

anyone with more info?

these cars will probably be in need of a tune right away due to different breathing characteristics of the engine being in the back. and having an aftermarket exhaust